The right side of the infield has actually performed pretty well, thus far, with Mark Ellis owning a .342/.363/.452 line (AVG/OBP/SLG) and Adrian Gonzalez having an OPS of .914. Both have injury concerns, as Ellis is on the DL right now and Gonzalez is day-to-day with a neck strain.
The problem with the infield, though, is the other side. Hanley Ramirez has played just four games this season due to multiple injuries, and his replacements have been bad. Luis Cruz has reached base just seven times this year, and he has zero extra base hits. Justin Sellers has just a .517 OPS, although he was mainly in the lineup for his defense.
The saving grace may be Dee Gordon, shockingly. Gordon has an .805 OPS in the admittedly small sample size of 36 plate appearances, but he is showing a legitimate increase in his walk rate.
In 25 games in Triple-A, Gordon had a 12% walk rate; in the majors, thus far, he is at 13.9%. His career rate is just 5.3%, so if this is a legitimate skill change, he has a chance to be a productive player.